The survivors race for Zillion 2, but neither Gemma nor Goldstein, her boss on Earth, have rescue in mind. The mission is far from over...

Jeanne learns more of what is required of her and becomes the Z2 crew's prime target. On Ulysses, desperate measures take a terrible toll.

Jeanne, Simon and Gemma enter the sculpted mountain and discover underground tunnels and artefacts from a long-gone civilisation. On Ulysses, crew members are being threatened by Doisneau and Wayne, but Irene - the ship IA - unexpectedly wakes up.

Fateful past decisions affect Komarov and Jeanne, while the Ulysses crew find themselves under threat from the impatient Z-2 military men.

Is Komarov the 'unicorn' Earth-bound billionaire Goldstein hunts? Gramat tries a desperate gambit to regain the initiative on Mars.

Jeanne struggles to recall what she learnt from Komarov. Visitor Gemma Williams, the Z-2's captain, prompts a string of revelations.

The crew has a sobering encounter with potential rescuers, and Jeanne tries to hypnotize the enigmatic Komarov.

The rescued man is a reminder to Jeanne of her father's interest in space, and Mars.

To save their stricken craft a sub-team seeks salvage, but the trio's discovery of a body means a surprisingly harsh reception on their return.

A European billionaire's venture to put the first people on Mars faces major crises on arrival, threatening to split an already fractious crew.